Ok so one of my chicks hatched a week later than the other six...all of them hatched by a broody. I was playing with them and feeding them (had my hand in their pen) and they were crawling up into my hand. I picked up the little one and held it for a little bit. When I set it back down mama started pecking it on the head over and over and over again. She would single it out to peck it. I scolded her and tried to stop it. I would distract all of them for a bit and then she would see it and start pecking it again! This went on for quite some time. She was even chasing it all over the pen to peck it wherever it ran and it was screaming. I know she was hurting it. The last straw was when she bit so hard she lifted it off the ground almost carrying it in her beak. WHY DID SHE DO THIS??? Was it because she was jealous of me holding it? I've got it separated now in my house now with a light and food and water. It is crying its head off and wants to go back with the others. I briefly took it out and put it down beside the pen and she tried to peck it through the hardware cloth. Should I try to put it back with mama and the others? I'm scared she will peck it to death.......what should I do?